Vaporizer



N0. 6|8,907. Patented Feb. 7, I899.

r. c. nosmsuu. VAPORIZEB.

(Application filed May 3, 1898.; (No Model) fl fwezzzgl' 1 MW r m Q6 c: Eczema;

FRANKLIN O. ROBINSON,

ATEN'I Fries.

OF BRUNSWICK, MAINE.

VAPORIZER.

SPECIFICATION forming part of Letters Patent No. 618,907, dated February '7, 1899. Application filed May 3, 1898. $erial No. 679,636. (No model.)

T0 all whom, it may concern:

Beit known that I, FRANKLIN O. ROBINSON, a citizen of the United States, residing at Brunswick, in the county of Cumberland and State of Maine, have invented certain new and useful Improvements in Vaporizers for Liquid Disinfectants, of which the following is a specification.

My invention is an improved vaporizer for liquid disinfectants. It is specially designed for vaporizingasolution of formaldehyde- In the use of this disinfectant it'is necessary to superheat the'vapor generated therefrom in order to prevent the formation of the solid paraformaldehyde. It is for this purpose that I have devised this apparatus, which includes a superheating-coil located between the tank which contains liquid formaldehyde and the-lamp or other heat-generating apparatus, the said coil being also located in the pipe which conducts the vapor from the tank to the discharge-orifice at the end of the pipe.

The apparatus is illustrated in the accompanying drawings, in which Figure 1 represents the tank and lamp in side elevation, together with the pipe and with the coil in section. Fig. 2 is a plan view of the coil.

In the drawings the closed tank is represented at A. Preferablyit is a copper tank capable ofholdingabouttwoqnartsofliquid. Itisprovided with afilling-orifice, as shown at F, and is mounted upon standards K, which are attached toa lamp G, which serves as a base for the apparatus. With the upper part of the tank is connected a pipe B, preferably of copper and of about one-eighth of an inch in diameter. This pipe extends down the side of the tank and is bent at right angles to pass under the bottom, where it is connected with the coil H. The inner end of the coil is connected with the pipe 0, which passes out from under the bottom and extends upward and is bent at right angles into horizontal position. The

end is preferably threaded to receive any suitable nozzle D of such shape as may be required.

It may be fitted, for example, to enter an ordinary keyhole in order to apply the vapor to disinfect the room. ,The tank is provided with a bail 6t.

The lamp is located so as to bring the flame centrally under the coil and tank, and the heat therefrom is imparted to the coil first and also to the bottom of the tank. This vaporizes gradually the liquid in the tank and forces the vapor down into the coil, where it is superheated and forced out through the orifice.

It will be manifest that the apparatus may be used with any other suitable heating apparatus in place of the lamp G; but the form shown comprises a convenient, portable, and simple apparatus.

Whatever heating apparatus may be used, if the heat be applied underneath the coil, which is arranged in a horizontal plane, it receives the greater degree of heat, while sufficient heat is carried by the products of combustion through the coil to the bottom of the tank.

Aflexible joint or extension may be provided in any convenient or well-known way for different heights of keyholes. A Whistle or other indicating device may be attached to the nozzle to show when the material is exhausted or the flow from any cause stopped.

I claim as my invention Avaporizer for liquid disinfectants, consisting of a tank A adapted to be closed steamtight, a pipe connected with the said tank near the top and extending down outside of the tank, a horizontal superheating-coil underneath the tank in connection with the aforesaid pipe, and an extension of said coil having a nozzle adapted to deliver the gases under pressure, and a lamp located beneath said coil, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

FRANKLIN O. ROBINSON.

. WVitnesses:

BARRETT POTTER, CLEMENT F. RoBINsoN. 

